66 citations · 88 across the 7 of their papers we have counts for
7 papers
Multi-User Pilot Pattern Optimization for Channel Extrapolation in 5G NR Systems
Yubo Wan, An Liu, Tony Q. S. Quek
Pilot pattern optimization in orthogonal frequency division multiplexing (OFDM) systems has been widely investigated due to its positive impact on channel estimation. In this paper…
A Two-Stage 2D Channel Extrapolation Scheme for TDD 5G NR Systems
Yubo Wan, An Liu
Recently, channel extrapolation has been widely investigated in frequency division duplex (FDD) massive MIMO systems. However, in time division duplex (TDD) fifth generation (5G) n…
A Two-stage Multiband WiFi Sensing Scheme via Stochastic Particle-Based Variational Bayesian Inference
Zhixiang Hu, An Liu, Yubo Wan +2
Multiband fusion enhances WiFi sensing by jointly utilizing signals from multiple non-contiguous frequency bands. However, in the multi-band WiFi sensing signal model, there are ma…
Fundamental Limits and Optimization of Multiband Sensing
Yubo Wan, An Liu, Rui Du +1
Multiband sensing is a promising technology that utilizes multiple non-contiguous frequency bands to achieve high-resolution target sensing. In this paper, we investigate the funda…
Multiband Delay Estimation for Localization Using a Two-Stage Global Estimation Scheme
Yubo Wan, An Liu, Qiyu Hu +2
The time of arrival (TOA)-based localization techniques, which need to estimate the delay of the line-of-sight (LoS) path, have been widely employed in location-aware networks. To…
A Survey on Fundamental Limits of Integrated Sensing and Communication
An Liu, Zhe Huang, Min Li +10
The integrated sensing and communication (ISAC), in which the sensing and communication share the same frequency band and hardware, has emerged as a key technology in future wirele…
Two-timescale Beamforming Optimization for Intelligent Reflecting Surface Aided Multiuser Communication with QoS Constraints
Ming-Min Zhao, An Liu, Yubo Wan +1
Intelligent reflecting surface (IRS) is an emerging technology that is able to reconfigure the wireless channel via tunable passive signal reflection and thereby enhance the spectr…